Conventional hard disks have randomly distributed nanoscopic magnetic grains – with a few tens of grains used to form one bit enables the latest hard disk models to hold up to 0.5 Terabit per square inch of information.Manufacturers currently use tiny grains of around 7 to 8-nm in size deposited on the surface of storage media. A single bit of data is stored in a cluster of these grains and not in any single grain.
However, Dr Joel Yang at the Institute of Materials Research and Engineering has discovered a way to store the same amount of information on a single grain the size of 10-nm. Thus, replacing several 7-nm grains with one 10-nm grain saves space and allows for denser storage capacities. In addition to the higher capacity, the Institute of Materials Research and Engineering also reveals that the new method can be added to existing lithography processes thanks to a sodium chloride or table salt.
“The secret of the research lies in the use of an extremely high-resolution e-beam lithography process that produces super fine nano-sized structures,” IMRE reports. “Dr Yang discovered that by adding sodium chloride to a developer solution used in existing lithography processes, he was able to produce highly defined nanostructures down to 4.5-nm half pitch, without the need for expensive equipment upgrades.”
Dr. Yang said that the salt-based method has achieved data-storage capability at 1.9 Terabit/in2, though bits of up to 3.3 Terabit/in2 densities were fabricated. Further research and development is aiming to achieve 10 Terabit/inch2 in the future, but don’t expect drives using the salt-based process to appear for another two years if not more!
Western Digital MyBook, Lacie Network or Seagate BlackArmor uses RAID technology to increase storage functions and reliability through redundancy. This is achieved by combining multiple disk drive components into a logical unit, where data is distributed across the drives in one of several ways called “RAID levels”.The standard RAID levels are a basic set of RAID configurations and employ striping, mirroring, or parity. The standard RAID levels can be modified for other benefits for modes like 1+0 or 0+1. We specialized in recovering data from affordable NAS system like Western Digital MyBook, Lacie Network or Seagate BlackArmor storage devices. Data Recovery procedure involves creating individual images from drives in RAID after which we are able to combine those images into one or several volumes depending on your configuration.
Often in cases of data loss, hasty or unsafe actions taken after the initial data loss event lead to even further data loss, or in some cases, permanent data loss. To avoid further damage to your media that could prevent a successful recovery, avoid the following actions:
- Do not power up any drive that shows obvious signs of physical damage, or that previously made any unusual sounds (such as grinding or clicking noises).
- Do not attempt to open any media or physically alter the drive in any way that would cause physical damage to the device.
- Do not write any new data to any drive(s) you suspect of having experienced data loss. Doing so may overwrite the data you are trying to recover and reduce the chances of a successful recovery.
- Do not format the drive.
- Do not attempt to modify any of the partitions on the drive
- Avoid using any do-it-yourself “data recovery tools”, especially with any media that shows obvious signs of physical damage, as these can further exacerbate the situation.
It is strongly recommended to isolate and secure any affected media to ensure that it is not physically misplaced or accidentally re-used prior to being submitted to a professional data recovery service.